A hardware module for the Tektronix AWG7000 series for generating waveforms and sequences thereof. More...

Inheritance diagram for tektronix_awg7k.AWG7k:

Collaboration diagram for tektronix_awg7k.AWG7k:

Public Member Functions
def	__init__ (self, config, kwargs)

def	on_activate (self)
	Initialisation performed during activation of the module.

def	on_deactivate (self)
	Deinitialisation performed during deactivation of the module.

def	get_constraints (self)
	Retrieve the hardware constrains from the Pulsing device. More...

def	pulser_on (self)
	Switches the pulsing device on. More...

def	pulser_off (self)
	Switches the pulsing device off. More...

def	load_waveform (self, load_dict)
	Loads a waveform to the specified channel of the pulsing device. More...

def	load_sequence (self, sequence_name)
	Loads a sequence to the channels of the device in order to be ready for playback. More...

def	get_loaded_assets (self)

def	clear_all (self)
	Clears all loaded waveforms from the pulse generators RAM/workspace. More...

def	get_status (self)
	Retrieves the status of the pulsing hardware. More...

def	get_sample_rate (self)
	Get the sample rate of the pulse generator hardware. More...

def	set_sample_rate (self, sample_rate)
	Set the sample rate of the pulse generator hardware. More...

def	get_analog_level (self, amplitude=None, offset=None)
	Retrieve the analog amplitude and offset of the provided channels. More...

def	set_analog_level (self, amplitude=None, offset=None)
	Set amplitude and/or offset value of the provided analog channel(s). More...

def	get_digital_level (self, low=None, high=None)
	Retrieve the digital low and high level of the provided/all channels. More...

def	set_digital_level (self, low=None, high=None)
	Set low and/or high value of the provided digital channel. More...

def	get_active_channels (self, ch=None)
	Get the active channels of the pulse generator hardware. More...

def	set_active_channels (self, ch=None)

def	write_waveform (self, name, analog_samples, digital_samples, is_first_chunk, is_last_chunk, total_number_of_samples)

def	write_sequence (self, name, sequence_parameter_list)
	Write a new sequence on the device memory. More...

def	get_waveform_names (self)
	Retrieve the names of all uploaded waveforms on the device. More...

def	get_sequence_names (self)
	Retrieve the names of all uploaded sequence on the device. More...

def	delete_waveform (self, waveform_name)
	Delete the waveform with name "waveform_name" from the device memory. More...

def	delete_sequence (self, sequence_name)
	Delete the sequence with name "sequence_name" from the device memory. More...

def	get_interleave (self)
	Check whether Interleave is ON or OFF in AWG. More...

def	set_interleave (self, state=False)
	Turns the interleave of an AWG on or off. More...

def	write (self, command)
	Sends a command string to the device. More...

def	query (self, question)
	Asks the device a 'question' and receive and return an answer from it. More...

def	reset (self)
	Reset the device. More...

def	has_sequence_mode (self)
	Asks the pulse generator whether sequence mode exists. More...

def	set_lowpass_filter (self, a_ch, cutoff_freq)
	Set a lowpass filter to the analog channels of the AWG. More...

def	set_jump_timing (self, synchronous=False)
	Sets control of the jump timing in the AWG. More...

def	set_mode (self, mode)
	Change the output mode of the AWG5000 series. More...

def	get_sequencer_mode (self, output_as_int=False)
	Asks the AWG which sequencer mode it is using. More...

def	sequence_set_waveform (self, waveform_name, step, track)
	Set the waveform 'waveform_name' to position 'step' in the sequence 'sequence_name'. More...

def	sequence_set_repetitions (self, step, repeat=1)

def	sequence_set_goto (self, step, goto=-1)

def	sequence_set_event_jump (self, step, jumpto=0)
	Set the event trigger input of the specified sequence step and the jump_to destination. More...

def	sequence_set_wait_trigger (self, step, trigger='OFF')
	Make a certain sequence step wait for a trigger to start playing. More...

def	make_sequence_continuous (self)

def	force_jump_sequence (self, final_step, channel=1)

def	get_errors (self)
	Get all errors from the device and log them. More...

Public Member Functions inherited from core.module.BaseMixin
def	__init__ (self, manager, name, config=None, callbacks=None, kwargs)
	Initialise Base class object and set up its state machine. More...

def	log (self)
	Returns a logger object.

def	is_module_threaded (self)
	Returns whether the module shall be started in a thread.

def	on_activate (self)
	Method called when module is activated. More...

def	on_deactivate (self)
	Method called when module is deactivated. More...

def	getStatusVariables (self)
	Return a dict of variable names and their content representing the module state for saving. More...

def	setStatusVariables (self, variableDict)
	Give a module a dict of variable names and their content representing the module state. More...

def	getConfiguration (self)
	Return the configration dictionary for this module. More...

def	get_connector (self, connector_name)
	Return module connected to the given named connector. More...

Public Member Functions inherited from core.module.ModuleMeta
def	__new__ (cls, name, bases, attrs)
	Collect declared Connectors, ConfigOptions and StatusVars into dictionaries. More...

Public Attributes
	awg

	ftp_working_dir

	installed_options

	fw_ver

	model

Public Attributes inherited from core.module.BaseMixin
	module_state

	connectors

Detailed Description

A hardware module for the Tektronix AWG7000 series for generating waveforms and sequences thereof.

Example config for copy-paste:

pulser_awg7000: module 'awg.tektronix_awg7k.AWG7k' awg_visa_address 'TCPIP::10.42.0.211::INSTR' awg_ip_address '10.42.0.211' timeout 60

tmp_work_dir: 'C:\Software\qudi_pulsed_files' # optional

ftp_root_dir: 'C:\inetpub\ftproot' # optional, root directory on AWG device

ftp_login: 'anonymous' # optional, the username for ftp login

ftp_passwd: 'anonymous@' # optional, the password for ftp login

Member Function Documentation

◆ clear_all()

def tektronix_awg7k.AWG7k.clear_all ( self )

Clears all loaded waveforms from the pulse generators RAM/workspace.

Returns: int: error code (0:OK, -1:error)

◆ delete_sequence()

def tektronix_awg7k.AWG7k.delete_sequence	(	self,
		sequence_name
	)

Delete the sequence with name "sequence_name" from the device memory.

Parameters

str	sequence_name: The name of the sequence to be deleted Optionally a list of sequence names can be passed.

Returns: list: a list of deleted sequence names.

◆ delete_waveform()

def tektronix_awg7k.AWG7k.delete_waveform	(	self,
		waveform_name
	)

Delete the waveform with name "waveform_name" from the device memory.

Parameters

str	waveform_name: The name of the waveform to be deleted Optionally a list of waveform names can be passed.

Returns: list: a list of deleted waveform names.

◆ get_active_channels()

def tektronix_awg7k.AWG7k.get_active_channels	(	self,
		ch = `None`
	)

Get the active channels of the pulse generator hardware.

Parameters

list	ch: optional, if specific analog or digital channels are needed to be asked without obtaining all the channels.

Returns: dict: where keys denoting the channel string and items boolean expressions whether channel are active or not.

Example for an possible input (order is not important): ch = ['a_ch2', 'd_ch2', 'a_ch1', 'd_ch5', 'd_ch1'] then the output might look like {'a_ch2': True, 'd_ch2': False, 'a_ch1': False, 'd_ch5': True, 'd_ch1': False}

If no parameter (or None) is passed to this method all channel states will be returned.

◆ get_analog_level()

def tektronix_awg7k.AWG7k.get_analog_level	(	self,
		amplitude = `None`,
		offset = `None`
	)

Retrieve the analog amplitude and offset of the provided channels.

Parameters

list	amplitude: optional, if the amplitude value (in Volt peak to peak, i.e. the full amplitude) of a specific channel is desired.
list	offset: optional, if the offset value (in Volt) of a specific channel is desired.

Returns: : (dict, dict): tuple of two dicts, with keys being the channel descriptor string (i.e. 'a_ch1') and items being the values for those channels. Amplitude is always denoted in Volt-peak-to-peak and Offset in volts.

Note: Do not return a saved amplitude and/or offset value but instead retrieve the current amplitude and/or offset directly from the device.

If nothing (or None) is passed then the levels of all channels will be returned. If no analog channels are present in the device, return just empty dicts.

Example of a possible input: amplitude = ['a_ch1', 'a_ch4'], offset = None to obtain the amplitude of channel 1 and 4 and the offset of all channels {'a_ch1': -0.5, 'a_ch4': 2.0} {'a_ch1': 0.0, 'a_ch2': 0.0, 'a_ch3': 1.0, 'a_ch4': 0.0}

◆ get_constraints()

def tektronix_awg7k.AWG7k.get_constraints ( self )

Retrieve the hardware constrains from the Pulsing device.

Returns: constraints object: object with pulser constraints as attributes.

Provides all the constraints (e.g. sample_rate, amplitude, total_length_bins, channel_config, ...) related to the pulse generator hardware to the caller.

SEE PulserConstraints CLASS IN pulser_interface.py FOR AVAILABLE CONSTRAINTS!!!

If you are not sure about the meaning, look in other hardware files to get an impression. If still additional constraints are needed, then they have to be added to the PulserConstraints class.

Each scalar parameter is an ScalarConstraints object defined in cor.util.interfaces. Essentially it contains min/max values as well as min step size, default value and unit of the parameter.

PulserConstraints.activation_config differs, since it contain the channel configuration/activation information of the form: {<descriptor_str>: <channel_set>, <descriptor_str>: <channel_set>, ...}

If the constraints cannot be set in the pulsing hardware (e.g. because it might have no sequence mode) just leave it out so that the default is used (only zeros).

◆ get_digital_level()

def tektronix_awg7k.AWG7k.get_digital_level	(	self,
		low = `None`,
		high = `None`
	)

Retrieve the digital low and high level of the provided/all channels.

Parameters

list	low: optional, if the low value (in Volt) of a specific channel is desired.
list	high: optional, if the high value (in Volt) of a specific channel is desired.

Returns: : (dict, dict): tuple of two dicts, with keys being the channel descriptor strings (i.e. 'd_ch1', 'd_ch2') and items being the values for those channels. Both low and high value of a channel is denoted in volts.

Note: Do not return a saved low and/or high value but instead retrieve the current low and/or high value directly from the device.

If nothing (or None) is passed then the levels of all channels are being returned. If no digital channels are present, return just an empty dict.

Example of a possible input: low = ['d_ch1', 'd_ch4'] to obtain the low voltage values of digital channel 1 an 4. A possible answer might be {'d_ch1': -0.5, 'd_ch4': 2.0} {'d_ch1': 1.0, 'd_ch2': 1.0, 'd_ch3': 1.0, 'd_ch4': 4.0} Since no high request was performed, the high values for ALL channels are returned (here 4).

◆ get_errors()

def tektronix_awg7k.AWG7k.get_errors ( self )

Get all errors from the device and log them.

Returns: bool: whether any error was found

◆ get_interleave()

def tektronix_awg7k.AWG7k.get_interleave ( self )

Check whether Interleave is ON or OFF in AWG.

Returns: bool: True: ON, False: OFF

Will always return False for pulse generator hardware without interleave.

◆ get_sample_rate()

def tektronix_awg7k.AWG7k.get_sample_rate ( self )

Get the sample rate of the pulse generator hardware.

Returns: float: The current sample rate of the device (in Hz)

Do not return a saved sample rate from an attribute, but instead retrieve the current sample rate directly from the device.

◆ get_sequence_names()

def tektronix_awg7k.AWG7k.get_sequence_names ( self )

Retrieve the names of all uploaded sequence on the device.

Returns: list: List of all uploaded sequence name strings in the device workspace.

◆ get_sequencer_mode()

def tektronix_awg7k.AWG7k.get_sequencer_mode	(	self,
		output_as_int = `False`
	)

Asks the AWG which sequencer mode it is using.

Parameters

◆ get_status()

def tektronix_awg7k.AWG7k.get_status ( self )

Retrieves the status of the pulsing hardware.

Returns: (int, dict): inter value of the current status with the corresponding dictionary containing status description for all the possible status variables of the pulse generator hardware

◆ get_waveform_names()

def tektronix_awg7k.AWG7k.get_waveform_names ( self )

Retrieve the names of all uploaded waveforms on the device.

Returns: list: List of all uploaded waveform name strings in the device workspace.

◆ has_sequence_mode()

def tektronix_awg7k.AWG7k.has_sequence_mode ( self )

Asks the pulse generator whether sequence mode exists.

Returns: : bool, True for yes, False for no.

◆ load_sequence()

def tektronix_awg7k.AWG7k.load_sequence	(	self,
		sequence_name
	)

Loads a sequence to the channels of the device in order to be ready for playback.

For devices that have a workspace (i.e. AWG) this will load the sequence from the device workspace into the channels. For a device without mass memory this will make the waveform/pattern that has been previously written with self.write_waveform ready to play.

Parameters

sequence_name dict|list, a dictionary with keys being one of the available channel index and values being the name of the already written waveform to load into the channel. Examples {1: rabi_ch1, 2: rabi_ch2} or {1: rabi_ch2, 2: rabi_ch1} If just a list of waveform names if given, the channel association will be invoked from the channel suffix '_ch1', '_ch2' etc.

Returns: dict: Dictionary containing the actually loaded waveforms per channel.

◆ load_waveform()

def tektronix_awg7k.AWG7k.load_waveform	(	self,
		load_dict
	)

Loads a waveform to the specified channel of the pulsing device.

For devices that have a workspace (i.e. AWG) this will load the waveform from the device workspace into the channel. For a device without mass memory this will make the waveform/pattern that has been previously written with self.write_waveform ready to play.

Parameters

load_dict dict|list, a dictionary with keys being one of the available channel index and values being the name of the already written waveform to load into the channel. Examples {1: rabi_ch1, 2: rabi_ch2} or {1: rabi_ch2, 2: rabi_ch1} If just a list of waveform names if given, the channel association will be invoked from the channel suffix '_ch1', '_ch2' etc.

Returns: dict: Dictionary containing the actually loaded waveforms per channel.

◆ pulser_off()

def tektronix_awg7k.AWG7k.pulser_off ( self )

Switches the pulsing device off.

Returns: int: error code (0:OK, -1:error, higher number corresponds to current status of the device. Check then the class variable status_dic.)

◆ pulser_on()

def tektronix_awg7k.AWG7k.pulser_on ( self )

Switches the pulsing device on.

Returns: int: error code (0:OK, -1:error, higher number corresponds to current status of the device. Check then the class variable status_dic.)

◆ query()

def tektronix_awg7k.AWG7k.query	(	self,
		question
	)

Asks the device a 'question' and receive and return an answer from it.

Parameters

string question: string containing the command

Returns: string: the answer of the device to the 'question' in a string

◆ reset()

def tektronix_awg7k.AWG7k.reset ( self )

Reset the device.

Returns: int: error code (0:OK, -1:error)

◆ sequence_set_event_jump()

def tektronix_awg7k.AWG7k.sequence_set_event_jump	(	self,
		step,
		jumpto = `0`
	)

Set the event trigger input of the specified sequence step and the jump_to destination.

Parameters

int	step: Sequence step to be edited
str	trigger: Trigger string specifier. ('OFF', 'A', 'B' or 'INT')
int	jumpto: The sequence step to jump to. 0 or -1 is interpreted as next step

Returns: int: error code

◆ sequence_set_goto()

def tektronix_awg7k.AWG7k.sequence_set_goto	(	self,
		step,
		goto = `-1`
	)

Parameters

int	step:
int	goto:

Returns: int: error code

◆ sequence_set_wait_trigger()

def tektronix_awg7k.AWG7k.sequence_set_wait_trigger	(	self,
		step,
		trigger = `'OFF'`
	)

Make a certain sequence step wait for a trigger to start playing.

Parameters

int	step: Sequence step to be edited
str	trigger: Trigger string specifier. ('OFF', 'A', 'B' or 'INT')

Returns: int: error code

◆ sequence_set_waveform()

def tektronix_awg7k.AWG7k.sequence_set_waveform	(	self,
		waveform_name,
		step,
		track
	)

Set the waveform 'waveform_name' to position 'step' in the sequence 'sequence_name'.

Parameters

str	waveform_name: Name of the waveform which should be added
int	step: Position of the added waveform
int	track: track which should be editted

Returns: int: error code

◆ set_analog_level()

def tektronix_awg7k.AWG7k.set_analog_level	(	self,
		amplitude = `None`,
		offset = `None`
	)

Set amplitude and/or offset value of the provided analog channel(s).

Parameters

dict	amplitude: dictionary, with key being the channel descriptor string (i.e. 'a_ch1', 'a_ch2') and items being the amplitude values (in Volt peak to peak, i.e. the full amplitude) for the desired channel.
dict	offset: dictionary, with key being the channel descriptor string (i.e. 'a_ch1', 'a_ch2') and items being the offset values (in absolute volt) for the desired channel.

Returns: (dict, dict): tuple of two dicts with the actual set values for amplitude and offset for ALL channels.

If nothing is passed then the command will return the current amplitudes/offsets.

Note: After setting the amplitude and/or offset values of the device, use the actual set return values for further processing.

◆ set_digital_level()

def tektronix_awg7k.AWG7k.set_digital_level	(	self,
		low = `None`,
		high = `None`
	)

Set low and/or high value of the provided digital channel.

Parameters

dict	low: dictionary, with key being the channel and items being the low values (in volt) for the desired channel.
dict	high: dictionary, with key being the channel and items being the high values (in volt) for the desired channel.

Returns: (dict, dict): tuple of two dicts where first dict denotes the current low value and the second dict the high value.

If nothing is passed then the command will return two empty dicts.

Note: After setting the high and/or low values of the device, retrieve them again for obtaining the actual set value(s) and use that information for further processing.

The major difference to analog signals is that digital signals are either ON or OFF, whereas analog channels have a varying amplitude range. In contrast to analog output levels, digital output levels are defined by a voltage, which corresponds to the ON status and a voltage which corresponds to the OFF status (both denoted in (absolute) voltage)

In general there is no bijective correspondence between (amplitude, offset) and (value high, value low)!

◆ set_interleave()

def tektronix_awg7k.AWG7k.set_interleave	(	self,
		state = `False`
	)

Turns the interleave of an AWG on or off.

Parameters

bool	state: The state the interleave should be set to (True: ON, False: OFF)

Returns: bool: actual interleave status (True: ON, False: OFF)

Note: After setting the interleave of the device, retrieve the interleave again and use that information for further processing.

Unused for pulse generator hardware other than an AWG.

◆ set_jump_timing()

def tektronix_awg7k.AWG7k.set_jump_timing	(	self,
		synchronous = `False`
	)

Sets control of the jump timing in the AWG.

Parameters

bool	synchronous: if True the jump timing will be set to synchornous, otherwise the jump timing will be set to asynchronous.

If the Jump timing is set to asynchornous the jump occurs as quickly as possible after an event occurs (e.g. event jump tigger), if set to synchornous the jump is made after the current waveform is output. The default value is asynchornous.

◆ set_lowpass_filter()

def tektronix_awg7k.AWG7k.set_lowpass_filter	(	self,
		a_ch,
		cutoff_freq
	)

Set a lowpass filter to the analog channels of the AWG.

Parameters

int	a_ch: To which channel to apply, either 1 or 2.
cutoff_freq	Cutoff Frequency of the lowpass filter in Hz.

◆ set_mode()

def tektronix_awg7k.AWG7k.set_mode	(	self,
		mode
	)

Change the output mode of the AWG5000 series.

Parameters

str	mode: Options for mode (case-insensitive): continuous 'C' triggered 'T' gated 'G' sequence 'S'

◆ set_sample_rate()

def tektronix_awg7k.AWG7k.set_sample_rate	(	self,
		sample_rate
	)

Set the sample rate of the pulse generator hardware.

Parameters

float sample_rate: The sampling rate to be set (in Hz)

Returns: float: the sample rate returned from the device (in Hz).

Note: After setting the sampling rate of the device, use the actually set return value for further processing.

◆ write()

def tektronix_awg7k.AWG7k.write	(	self,
		command
	)

Sends a command string to the device.

Parameters

string command: string containing the command

Returns: int: error code (0:OK, -1:error)

◆ write_sequence()

def tektronix_awg7k.AWG7k.write_sequence	(	self,
		name,
		sequence_parameter_list
	)

Write a new sequence on the device memory.

Parameters

name	str, the name of the waveform to be created/append to
sequence_parameter_list	list, contains the parameters for each sequence step and the according waveform names.

Returns: : int, number of sequence steps written (-1 indicates failed process)

The documentation for this class was generated from the following file:

hardware/awg/tektronix_awg7k.py

Public Member Functions

Public Attributes

Detailed Description

tmp_work_dir: 'C:\Software\qudi_pulsed_files' # optional

ftp_root_dir: 'C:\inetpub\ftproot' # optional, root directory on AWG device

ftp_login: 'anonymous' # optional, the username for ftp login

ftp_passwd: 'anonymous@' # optional, the password for ftp login

Member Function Documentation

◆ clear_all()

◆ delete_sequence()

◆ delete_waveform()

◆ get_active_channels()

◆ get_analog_level()

◆ get_constraints()

◆ get_digital_level()

◆ get_errors()

◆ get_interleave()

◆ get_sample_rate()

◆ get_sequence_names()

◆ get_sequencer_mode()

◆ get_status()

◆ get_waveform_names()

◆ has_sequence_mode()

◆ load_sequence()

◆ load_waveform()

◆ pulser_off()

◆ pulser_on()

◆ query()

◆ reset()

◆ sequence_set_event_jump()

◆ sequence_set_goto()

◆ sequence_set_wait_trigger()

◆ sequence_set_waveform()

◆ set_analog_level()

◆ set_digital_level()

◆ set_interleave()

◆ set_jump_timing()

◆ set_lowpass_filter()

◆ set_mode()

◆ set_sample_rate()

◆ write()

◆ write_sequence()